Stamping press



May 23, 1933. w. HEHN 1,910,918

STAMPING PRESS v Filed May 22, 1951 5 Sheets-Sheet 1 May 23, 1933. HEHN 1,910,918

I STAMPING PRESS Filed May 22, 1951' 3 Sheets-Sheet 3 llll'liillllilill ll! ll ll,

latentedMay 23,1!- )33 i i n 1 910 91 TE TAT S PATENTj oFF cE: I i i i Q warren. nnrmpor diiiti ogmmois i I i I STAMPIN rnnssi nnicane11lined Ma 22, .1931. semi" No. 9, 75;

"1hisfinventibhrelates to improvements in said standard a forwardly extending arm stamping presses and itconsists ofthe matthat overhangs the enlargement'at the botters hereinafter described and more PflItlClF tom ofthestandard. larly pointed outin the appended claims. ()n the front face of the overhanging arm 5 The 'primary object ofthe invention is to and mdunted in "suitable guides thereon, is providea press especially adapted for use a verticall'yinovable head or ram that car; in book bindingand similar establishments cries a stamping or impression dieand an ior stamping titles and the like in foil oi the associated heatingelement at its bottom. In desired color upon either the back or sides the overhangingarm isa lever like member W of book covers. having a rack and seginentengagelnent at 60 T A furtherobject of the invention is to 1010- one end with said head and this lever is envide a pressot this kind which ispower acgaged by the top end of a rod disposed in tnated and which is adaj ustableto bring the the uprightstandard; The bottom end of cover ;to be stamped into proper relation said rod hasa one way connection with'an 7 with respect to the stamping or impression eccentric arrangement in the base and Open 65 inelnber that initself is positioned adjacent atively driven fronr a speed reducing gear a heating elementcarried by the rain of the set therein, which in itself is motor driven press, and'incluclesa tripping treadle. Another object of the invention is to pro- On the front face of the upright standard 1 vide a press of this kind wherein the book between the base andoverhangingarm there cover supporting table is mounted upon its ismountecl for verticaladjustment in suitadjustablesupportsothat the table may be able guides, a work table support, whereby moved outwardly thereon for positioning the work table may be niovedtoward or i the book coverthercon whereby the operaway from the impression or. stamping die ator has an: unobstructed View of the cover to bringits book cover receiving surface into same. i s

islso positioning it upon the table. p properposition for coacting with the stamp} These objects of the invention, as well as ing or impression die. Said work receiving others, together withthe inany advantages table is mounted on said support foran in thereof, will more fully appeal" as I proceed ward and outward movement, and when in 00 with lnyspecilication. its outward position, gives a full unobstruc- 80 In the drawings a ted view of the cover holdingdevices there- 1 Fig; 1 isa View in side elevation of a on; whereby each book cover maybe propstamping" press embodying my invention. erly positioned so that when said table is Fig. 2 1s a view in frontclovation oithe movedinward," accurate registration be u i i a v tween the die and bookcover to bestamped .FigJ S is a longitudinal vertical sectional .is assured. view through thesame asfitaken onthe line l Referringfnow in detail tothat embodi- 3-3 of Fig. 2. ment of the invention, illustrated in the Figs; 4 and 5iarehorizontal sectionalviews drawings :'1 indicates as a whole an upu 40 through the press each on an enlarged scale, right hollowstandard, provided at its bot- 9O theplanes of said sections being taken on the tom end with a forwardly extending enlargelines 4-4 and5\5 respectively of Fig. 3. 3 ment 2 having an outwardly extendingman Fig. 6 is another horizontal sectional view ginal flange 3 which provides a good stable through the pressonla further enlarged base for the press. Said standard which is scale as taken onlthe linc 6 6 otFig.2. preferably of a rectangular cross section is 35 Ingeneral, lllYilIlPIOVGCl press includes open at the back and includesaiorwardly anUupfight hollow standard having a forextending hollow arm lat itstop end that wardly extending enlargement at the front overhangs the enlargement 2. A- removable bottom. end that provides a stable base for cover 5 is associated with the open back of the presslas a whole and on thetop end of the standard whereby access maybe had to'100 the interior of said standard for the inspection of the parts within the same and which will later be described.

The front face of the overhanging arm has an opening 6 therein and at opposite sides of said opening said face is rabbetted and has bolted thereto guide plates 7 to form guides for flanges or rails 8 carried. on opposite sides of a ram member 9. The bottom end of said ram is formed to provide an enlarged rectangular headlO containing electrical or other heating elements (not shown) and carried on the bottom surface of said head is the chase 11 thatholds the impression members 12. The head has longitudinally, as well as transversely extending T- shaped or undercut grooves 13 in its bottom surface in either of which grooves the holder bar;14' of the chase 11 may be removably engaged. Such a holder bar is best shown in Fig. 2 and the same is provided with an insulated handle 15 whereby it may be withdrawn and replaced in the heating head 10 when necessary. Such a chase forms no particular part ,of the present invention so that it is only generally illustrated andmcntioned herein.

On the top of the overhanging arm is an upstanding bracket 16 in which a lever 17 is pivoted near its front end and said endof said lever has a pivoted link connection 18 with the top end of said ram 9. A weight 19 is adjustably mounted on said lever whereby the'weight of the ram is counter balanced and a spring 20 connects said lever to said bracket 16 in a manner imparting a downward movement to the associated end of the lever to impart an upward movement to the ram.

On the rear face of said ramand disposed in the opening 6 in the front face of the'overhanging arm is provided a vertically extend;

ing rack 21. Meshing therewith is a gear segment 22 formed as a part of a lever 23 disposed in'the arm 4 and pivoted on a cross shaft 24 therein. In the top endof said standard, to the rear of and parallel with the shaft 24 and below therear end of the lever 23 is a rock shaft 25. This rock shaft carries a cam 26 disposed in the plane of the rear end of the lever 23 so as to engage the same and on one end of said shaft and preferably the right hand end outside the standard is secured a normally upward and rearwardly extending hand lever 27. Said lever normally engages in a stop 28 secured to the associated side wall of the standard so as to beheld in said upwardly and rearwardly extending position as best shown in Fig. 1 and the purpose of this lever and cam will appear later.

In'the bottom end of the standard is lo- .cated a speed reducing gear set 29 of any convenient kind. Said gear set includes a casing for enclosing the usual gearing and projecting rearwardly from said casing is the driven shaft 30 of the set. Said shaft carries a sprocket 31 which is driven by a chain 32 from a second sprocket 33 fixed to the armature shaft 34 of a motor 35 that is secured in position upon the top of the enlargement 2 of the standard.

The driving shaft 36 of said speed reducing gear set extends laterally from the easing and has secured thereto an eccentric 37. A strap 38 surrounds said eccentric and this strap includes an upwardly disposed tubular extension or guide 39. Said tubular extension receives with a sliding fit, the bottom end of an actuator or push rod 40 extending up through the hollow standard to have a pivotal connection 41 with the rear end portion of the lever 23. The speed reducing gearing is of the kind including a tripable clutch means whereby when said means has been tripped, the shaft 36 makes one revolution and then remains idle until said clutch means is again tripped.

To so trip said clutch means, a food treadle 42 is provided and said treadle extends out through a suitable slot in the front of the enlargement 2 so as to be conveniently disposed for actuation by the foot of the operator.

The front wall of the standard, is formed at a point between the overhanging arm 4 and the enlargement 2 with rails 43 which are received in guide channels 44 in the rear wall 45 of a work table supporting platform indicated as a whole at 46. Said platform also includes a forwardly projecting horizontal top or bed 47 in which is provided a centrally located longitudinal slot 48. The rear wall and bed of this platform are connected togetherat each side by webs '49 and centrally in said rear wall and opening through the bottom thereof is a slot 50.

Projecting forwardly from the front wall of the standard, in the plane of the slot 50 are vertically spaced, fixed apertured ears 1-51 and located between said cars is a hand wheel 52. Said hand wheel has threaded engagement with a post or shaft 53 which is fixed at its top end in a boss 54 on the bottom side of the bed 47. Thus when the hand wheel is turned in one direction or the other, the work table supporting platform is raised or lowered.

Associated with the bed of said platform is a work receiving table 55 that has a dove tail sliding guiding bearing engagement with rails 56 along the sides of-the platform bed 47. Said table is provided on its bot tom side with a handle '47 that extends down throughthe slot 48 in said bed. By means of said handle, the table may be moved forwardly and rearwardly upon said bed a distance equal to that of the slot 48 therein, the handle 57 engaging the ends of said slot to act as limiting stops for the movement pressed thereon by hand. This made such of? said table; Secured to the top surface of said table along oneside thereof isa guide bar58 that carries lateral extending spring fingers 59 under which thesides 60 of a book cover may :beengaged. An impression receiving bar 61 is disposed upon said table parallel with but vmidway between said fingers59 to be positionedbeneath the back a-book cover therefrom. h It is also pointed out that the impression receiving bar 61 is one of a set of such,.bars that differ in width and thickness to accommodate book back i bones of different widths and thicknesses. The guide bar 58 isadjustable lat erally of thebed which is provided'with suitable calibrations along its i margins by which the various parts may be: accurately arrangedon the: table. a i V nAt one side ofthe bed 470i the platform,

Iprovidea pair of laterally and upwardly extending brackets 64 to receive a shaft 65 upon which a number of spools of colored foil 66 may be engaged. If desired, simiciallyadvantageous in book binderies wherelar brackets 64 may beprovided atthe rear of the bed,to receive the-shaft and spools 66; when it is found more convenient to have said spools in that position as is necessary in working upon book covers of (36118111 sizes.

The press structure described is one espein large numbers ofbooks areto havetitles and the like stamped upon the back bone or sides of the coverin foil colors contrasting to that ofthe cover itself. Heretofore, it

has been the practice to a provide theusual chase with its nnpresslon members and t0 heat thesame in anoven or in an openxiiame and then place foil upon that part of the icover to bear the title. Thereafter the heated chase with its impression memberwas Wlllhdrawn flOlllutllG oven. placedin a suitable holder whleh was brought into OPBIZLtIVG position ,Wlth tl1G1bO()l cover and then pages ofthe book so that the sides and back a bone of; thccover could beopened out flat.

a In stamping titles on the backbone of book covers, withiny improved press the opera tion isas follows: Assume that thetitle hasbeen set up from properimpression membersin the chase and that the heating head 10 is heatedto ,the' desired temperature, by

the heating {element therein; which is preferably' of .the electric current type. "Also,

10 so that a full unobstructed vi'ewis had of thesame. a i i a .Abook cover in its; fiat condition is then laid, outside up, upon the table with one edge up against the guidebar 58 and with its back bone positioned over the flat bar 61 previously arranged in place in the plane of the impressionmembers in the chase.- In this positioning of the book cover, the spring the cover has; been positioned the spring fingers are swung back again toengage upon the sides of the cover tohold them in place.

The handle 57 is then grasped and pushed rearwardly and this slidesthe table with the cover thereon rearwardly until the handle engages the rear of the slot8ifwhich limits the rearward movement of the table and brings the back bone of the cover in fingers 59 may be swung to oneside and after h line with the imljression members in the chase. y y 1 a i To determine the. proper position of the book cover with respect to the, die whereby the proper impression may be made, the hand lever 27 isgrasped and swung forwardly, this will rockthe shaft; 25 andhcause the cam 26 to swingupwardly and engage therear end of the lever23 to swing it about the shaft 24 so as to move the ram ,down

wardlyf fThereafterfthe hand wheel 52 is turned in the properdirectionlto impart a movement tothe support with respect to the impressionmembers whlerebyQit may, be properly positionedgso that the impression to be made not too light oryt'o o'heavy. After the table has been positionedas just above mentioned, the lever 27 is returned to its normal inoperative position against the stop 28 and the table is drawn forwardly, to again expose the book cover. Thefdesired foilspo'ol 66 isthen moved alongthe shaft 65 to lineup with thecover back boneand a length of foil is drawn fi-om the spool sufiicient to cover that area of the backbone upon which the title isto be stainiped or impressed: The table is then returned to its rearward position. 3

Y With the motor 35 in operation,"the operator now steps on the treadle 42 and this Jtrips the clutchof the speedreducing gear set 29 which drivesthe shaft 36 one complete revolution and-then stops. Ina part of the revolution of said shaft, the eccentric 37 willjthrough the strap 38 and tube39 impart an upward lift to the rod 40. This will swing the lever 23 upwardly to move the ram 9 downwardly byreason of the segment 22 and rack 21 so that the impression members in the chase engage the foil strip and impress and offset a portion thereof in to the back bone of the cover in accordance with the impression members employed. After the'impression member has completed its work, the other part of the revolution of said shaft will return the tube :39 to its normal position and the spring 20 will act to swing the weighted end of the lever 17 downwardly and to return the ram to its normal uppermost position. In this movement of the ram, it swings the lever 23 downwardly so that the rod 40 again returns to its position in the tube 39 ready for the next operation.

The table 55 is then pulled forwardly to expose'the book cover to full view and with a soft cloth or the like, the back bone is wiped over to remove all surplus foil from about the edges of the impressions thus made.

After the platform and table have once been adjusted withrespeet to the impression member as before mentioned, they need no further adjustment.

Another book cover is applied to the table, the color foil strip is positioned over the back bone, the table is moved inward and after the treadle has been stepped on, the ram again'descends to make the stamp ing or impression and then returns to its normal. position. The stamped book cover is removed and another one is applied to the table and the operations are carried on as before mentioned.

As the book covers are always positioned in register with the impression members and as the depth of each impression is always the same, it is apparent that uniformityboth as to character and quality of the impression or stamping made is assured.

Where the titles or surface ornamentations are to be applied to the sides of the cover, the operation is substantially as de scribed. By means of the improved press, not only is uniformity in impressions assured, but such impressions can be made at a greater speed than has heretofore been possible under the hand methods now used in the industry.

The machine has provisions for adjustments for all sizes and thickness of covers within reason, and consists of but a few parts-which are strong and rigid, and which there fore cannot readily get out of order.

While in describing the invention, I have referred in detail to the form, arrangement and construction of the various parts thereof, the same is to be considered merely as illustrative sothat I do not wish to be limited thereto except as may be specifically set forth in the appended claims.

I claim as my invention 1. In a stamping press, a standard, a ram mounted on the standard for reciprocating movement in a given plane, means engaged with said ram for moving the same in one direction, power operated means operatively engaged with said first mentioned means for actuating the same and manually operable means for actuating said first mentioned means independent of said power operated means.

'2. In a stamping press, a standard, a ram mounted on the standard for reciprocating movement in a given plane, means engaged with said ram for moving the same in one direction, power actuated means operatively connected with said first mentioned means for actuating the same, manually operable means for actuating said first mentioned means independent of said power actuated, means and other means for imparting a movement to said ram in the other direction whether said ram has been moved in the firstdirection by either said power operated or said manually operable means.

In a stamping press, a standard, a ram mounted on the standard for reciprocating movement in the desired plane, a rocking lever member pivoted'in said standard and operatively connected to said ram to move it in one direction, other means for moving the ram in the other direction, power actuated means also mounted. on said standard and including arotatable shaft, a member operatively engaged on the shaft so as to be leoiprocated thereby, a push rod disposed between said last mentioned member and the other end of said lever member and so connected to one of said members as to transmit rocking movement to the rocking lever member as said rod moves in one direction only.

l. In a stamping press, a standard, a ram mounted on the standard for reciprocating movement in the desired plane, a rocking lever member pivoted in said standard and operatively connected to said ram to move it in one direction, other means for moving the ram in the other direction, power actuating means also mounted on said standard and including a rotatable shaft, a tubular member operatively engaged on the shaft so as to be reciprocated thereby and a push rod operatively connected at one end to the other end of the lever member and having its other end disposed for a one way power transmitting engagement in said tubular member. 1

5. In a stamping press, a standard, a ram mounted on the standard for reciprocating movement in the desired plane, a rocking lever member pivoted in said standard and operatively connected to said ram to move it in one direction, other means for ment in saidtubular extension until limited nniovlng the ram 1n the other direction, poW- by abutting a fixed part of the same.

er actuated means also mounted on said In testimony whereof, I have hereunto standard and including a rotatable shaft, a set my hand, this 11th day of May, 1931.

member operatively engaged on said shaft so as to be reciprocated thereby, a pushrod between said last mentioned member and the other endof said lever member and so connected to one of said members that said push rod actuates the lever member when said rod moves in one direction only, and manually operable means for actuating said otherend of said lever member independent of the push rod." 1 o 6., In a stamping press, a standard, a ram mounted on the standard for reciprocating movementin thedesired plane, a rocking lever memberpivoted in said standard and operatively connected to said ram to move it in one direction, other means for moving the ram in the other direction, power actuating means also mounted on said standard and including a rotatable shaft, a member operatively engaged on said shaft so as. to

be reciprocated thereby, a push rod between said last mentioned member and the other end of said lever member and so connected to one of said members that said push rod actuates the lever member when said rod moves in one direction only, and a manually operable rock shaft in said standard, and carrying a cam member movable into engagement with said other end of the lever member to actuate the same independent of said push rod.

7. In a stamping press, a standard, a ram mounted on the standard for reciprocating movement in the desired plane, a rocking lever member pivoted in said standard and operatively connected to said ram to move it in one direction, other means for moving 7 the ram in the other directiompower actuating means also mounted on said standard and including a rotatable shaft, an eccentric on said rotatable shaft, a strap on said eccentric and carrying a tubular extension and a push rod pivotally connected at one end to said lever member, the other end of said push rod having a telescopic engagement in saidtubular extension until limited by abutting a fixed part of the same.

8. In a stamping press, a standard, a ram mounted on the standard for reciprocating movement inthe desired plane, a rocking lever member pivoted in said standard and operatively connected to said ram to move it in one direction, other means for moving the ram in the'other direction,.power aotuating means also mounted on said standard and including a rotatable shaft, an cecentric on said rotatable shaft, a strap on said eccentric and carrying a tubular extension and a push rod pivotally connected at one end to said lever member, the other end of said push rod having a telescopic engage- WALTER HEHN. 

